Literaturdatenbank
Literaturdatenbank |
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Gaillard, D., Selman, W., Jones, B., Kreiser, B., & Landry, K. , A pearl of a turtle: Population genetics of the ringed sawback (graptemys oculifera) from the pearl river system, usa - abstract. Unpublished paper presented at Program and Abstracts of the Tenth Annual Symposium on the Conservation and Biology of Tortoises and Freshwater Turtles.
Added by: Sarina Wunderlich (06 Jul 2014 16:10:46 UTC) |
| Resource type: Conference Paper BibTeX citation key: Gaillard2013 View all bibliographic details  |
Categories: General Keywords: Chelydra serpentina, Chelydridae, Chrysemys picta, Emydidae, Genetik - genetics, Glyptemys insculpta, Habitat - habitat, Nordamerika - North America, Schildkröten - turtles + tortoises Creators: Gaillard, Jones, Kreiser, Landry, Selman Collection: Program and Abstracts of the Tenth Annual Symposium on the Conservation and Biology of Tortoises and Freshwater Turtles |
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| Abstract |
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Graptemys oculifera (Ringed Sawback) is endemic to the Pearl River system of Mississippi and Louisiana, including several larger tributaries such as the Bogue Chitto, Strong, and Yockanookany Rivers. It was listed as a threatened species in 1986 by the USFWS, as well as being state listed as endangered in Mississippi and threatened in Louisiana. The existing studies on G. oculifera have produced valuable information on size at sexual maturity, growth rates, morphology, habitat preferences, and population sizes. Despite being listed and having data available on many life history/ecology aspects, there is little published information on connectivity of populations that would help guide the rangewide management of G. oculifera. One question that remains unanswered is do populations of G. oculifera form one panmictic population or is there population structure found within this species? If structure is present, what are the geographic or anthropogenic factors underlying this structure? In this study, we genotyped 220 individuals from 7 sites for 7 polymorphic microsatellite loci and used these data to describe population differentiation, potential barriers to gene flow, and assess levels of genetic diversity within G. oculifera.
Added by: Sarina Wunderlich |